try:
  x = 5 / 0
except:
  print('程序有错误')

try:
  x = 5 / 0
except ZeroDivisionError as e:
  print('不能为0',e)
except:
  print('其他错误')
else:
  print('没有错误')
finally:
  print('关闭资源')

def method():
raise NotImplementedError('该方法还未被实现')

import unittest
from example import get_formatted_name

class NameTestCase(unittest.TestCase):
  def test_title_name(self):
    formatted_name = get_formatted_name('tom','lee')
    self.assertEqual(formatted_name,'Tom Lee')
if __name__ == '__main__':
  unittest.main()

class Coder:
  def __init__(self,name):
    self.name = name
    self.skills = []

  def mastering_skill(self,skill):
    self.skills.append(skill)

  def show_skills(self):
    print('掌握技能：')
    for skill in self.skills:
      print('-',skill)

import unittest
from coder import Coder

class CoderTestCase(unittest.TestCase):
  def setUp(self):
    self.c = Coder('Tom')
    self.c.mastering_skill('Python')
    self.c.mastering_skill('Java')
    
  def test_skill_in(self):
    self.assertIn("Python",self.c.skills)
    
  def tearDown(self):
    print('销毁')

if __name__ == '__main__':
  unittest.main()

import unittest

person ={'name':'Tom','age':30}
numbers = [1,23,3,4,4,54]
s = 'hello world python'


class TestAssert(unittest.TestCase):
  def test_assert_method(self):
    self.assertEqual('Tom',person.get('name'))
    self.assertTrue('hello' in s)
    self.assertIn('hello',s)
    #self.assertEqual(3.3,1.1+2.2)
    self.assertAlmostEqual(3.3,1.1+2.2)
    #判断在内存中是否是同一个引用
    self.assertIs(True+1,2)
    self.assertIsNone(None)
    #判断是否是某个类型的实例
    self.assertIsInstance(numbers[0],int)
    #是否大于
    self.assertGreater(5,4)
if __name__ == '__main__':
  unittest.main()